Mercurial > hg > aim92

annotate filter/formulae.h @ 0:5242703e91d3 tip

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Initial checkin for AIM92 aimR8.2 (last updated May 1997).
author tomwalters
date Fri, 20 May 2011 15:19:45 +0100
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tomwalters@0 1 /*
tomwalters@0 2 Copyright (c) Applied Psychology Unit, Medical Research Council. 1988, 1989
tomwalters@0 3 ===========================================================================
tomwalters@0 4
tomwalters@0 5 Permission to use, copy, modify, and distribute this software without fee
tomwalters@0 6 is hereby granted for research purposes, provided that this copyright
tomwalters@0 7 notice appears in all copies and in all supporting documentation, and that
tomwalters@0 8 the software is not redistributed for any fee (except for a nominal shipping
tomwalters@0 9 charge). Anyone wanting to incorporate all or part of this software in a
tomwalters@0 10 commercial product must obtain a license from the Medical Research Council.
tomwalters@0 11
tomwalters@0 12 The MRC makes no representations about the suitability of this
tomwalters@0 13 software for any purpose. It is provided "as is" without express or implied
tomwalters@0 14 warranty.
tomwalters@0 15
tomwalters@0 16 THE MRC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
tomwalters@0 17 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL THE
tomwalters@0 18 A.P.U. BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
tomwalters@0 19 DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
tomwalters@0 20 AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
tomwalters@0 21 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
tomwalters@0 22 */
tomwalters@0 23
tomwalters@0 24 /*
tomwalters@0 25
tomwalters@0 26 formulae.h
tomwalters@0 27 ==========
tomwalters@0 28
tomwalters@0 29
tomwalters@0 30 */
tomwalters@0 31
tomwalters@0 32 #define _FORMULAE_H_
tomwalters@0 33
tomwalters@0 34 /* The Cambridge brians paramters for specifying filter bandwidth */
tomwalters@0 35
tomwalters@0 36 extern void SetErbParameters() ;
tomwalters@0 37
tomwalters@0 38 extern double Erb(), ErbScale(), FofErbScale() ;
tomwalters@0 39
tomwalters@0 40 /* 2nd order polynomial model of human sensitivity as function of frequency */
tomwalters@0 41
tomwalters@0 42 extern double dBAudiogram(), Audiogram() ;